baber/WOPTO huggingface dataset:
Patent GB-792619-A (GB)
Title: Improvements relating to brackets
IPC: A47G29/02
Filed: 1954-03-22
Abstract: 792,619. Brackets; cabinets. SLEIGH, L. C. March 18, 1955 [March 22, 1954], No. 8253/54. Classes 52(1) and 52(5) A bracket securing cupboards & against one face of a door comprises an L-shaped steel member having a long arm 10, adjustably secured to top surface 14 of the cupboard &c. and extending across the 15, and a short arm 11 engaging the other face of the door. Apertures 12 for the passage of wood screws are elongated to accommodate different thicknesses of door and the arm 11 may also be apertured for a fixing screw.
Patent GB-490072-A (GB)
Title: Improvements in and relating to fluid meters
IPC: G01F3/12
Filed: 1937-03-20
Abstract: 490,072. Rotary meters. PRECISION METERS, Ltd., and HORTON, F. March 20, 1937, No. 8282. [Class 110 (ii)] A meter having a nutatory piston 1-2 on an inclined axis, is pressed axially upwards or downwards, to seat against a flat plate 9. The parts 1-2 are secured together by a screw 6. An extension 23 drives the recording mechanism 25 by means of a spindle 24. A spacing member 5 has spherical edges 13 sealing a hole in the plate 9. Inlet and outlet ports 14, 15, communicate with inner ports which extend above and below the plate 9. A vane 18, carried by the piston, extends through a radial slot 19 in the ring 9, and separates the inlet and outlet ports. A pin 29 engages a conical head 30, which is pressed upwards by a spring 31. In place of this arrangement, a spring may be arranged to contact with the pin 23 by means of a disc on the spindle 24. Packing grooves may be provided in the surfaces 28, 33. The invention may be applied to a meter in which a flat disc moves across a sectorshaped chamber.
Patent GB-940734-A (GB)
Title: Fuel element charging arrangements for nuclear reactors
IPC: G21C19/16
Filed: 1960-03-09
Abstract: 940,734. Fuelling reactors. SOC. DES FORGES ET ATELIERS DU CREUSOT. March 9, 1960 [March 9, 1959; March 31, 1959], No. 8395/60. Heading G6C. An arrangement for charging the fuel element channels 5 of a reactor having a core 6 and pressure vessel 9, the channels 5 being arranged in groups each group having a standpipe 10, the channels being extended by tubes 8 having divergent entrances 8a, the entrances of each group lying on a spherical surface at points on a spiral having its centre in alignment with a standpipe, comprises a tube 1 having pivoted thereto at 3 a tubular arm 2, the lower end of the tube 1 having a lateral opening to permit outward movement of the arm 2 about its pivot 3. When the assembly 1, 2 is lowered through a standpipe 10 an extension 43 secured by bearings 45 to a projection 44 integral with the tube 1 enters a passage 57 in the core 6, the extension being keyed against rotation in the passage. The arm 2 is moved by links 58 pivoted at 42 to the arm and at 41 to an axially movable member 35 situated in the tube 1, a rod 38 secured to the member 35 having a threaded part 39 engaged by a nut 40 fixed against rotation in the extension 43. Thus on rotation of the tube 1 to raise the rod 38 by engagement of part 39 with the nut 40 the arm 2 is moved outwardly and describes a spiral path above the entrances 8a. When the end 4 of the arm 2 is above the selected entrance 8a the tube 1 is lowered by a small further amount to provide a continuous path for the fuel elements. This further lowering movement is obtained by gas-operated jacks which support the upper end of the tube 1 (Fig. 1, not shown); moreover, as shown in Fig. 1, the tube 1 is rotatable by gearing and its upper end is connected by a pipe to a fuel element charging machine. In an alternative construction (Figs. 7-10, not shown), the extension secured by bearings to the lower end of the tube 1 is hollow and forms a continuation of the fuel element passage whereby fuel elements may be charged into a fuel element channel 5 having its axis in alignment with the axis of the tube 1.
Patent GB-398118-A (GB)
Title: Process for the vulcanisation of rubber
IPC: C08K5/00
Filed: 1933-03-20
Abstract: Mixed dithiocarbamates are prepared by allowing carbon disulphide with or without solvents to react on an equimolecular mixture of piperidine or homologues thereof with other primary or secondary bases, or by bringing free dithiocarbamic acids into reaction with a base different from the corresponding starting base.  Thus carbon disulphide and an equimolecular mixture of piperidine and cyclohexylamine gives cyclohexylamine pentamethylenedithiocarbamate together with a little piperidine cyclohexyl-dithiocarbamate.  The pure compound may be isolated by crystallization from alcohol or acetone, and used as a vulcanization accelerator.ALSO:The vulcanization of rubber is accelerated by the addition to the mix of mixed dithiocarbamates of the general formula RR1-N-CSSH-R11R111-NH in which R and R1 indicate the same or different carbon-containing residues which are closed to form a ring and R11 and R111 are also the same or different carbon-containing residues which are also closed to form a ring but R, R1 are always different from R11, R111. In these compounds both rings may carry further substituents. Compounds mentioned are cyclohexylamine pentamethylene-dithiocarbamate and cyclohexylethylamine pentamethylene-dithiocarbamate.  The new accelerators are prepared by allowing carbon disulphide with or without solvents to react on an equimolecular mixture of piperidine or homologues thereof with other primary or secondary bases, or by bringing free dithio-carbamic acids into reaction with a base different from the corresponding starting base.  Thus carbon disulphide and an equimolecular mixture of piperidine and cyclohexylamine gives cyclohexylamine pentamethylene-dithiocarbamate together with a little piperidine cyclohexyl-dithiocarbamate.  The mixture may be used as such for the purposes of vulcanization, but the pure compound may be obtained by recrystallization from alcohol or acetone.
Patent GB-471213-A (GB)
Title: A process for splitting up mixtures of hydrocarbons of high molecular weight
IPC: C10G21/12
Filed: 1936-03-20
Abstract: <PICT:0471213/III/1> Mixtures of high molecular weight hydrocarbons are fractionated by mixing with a substance of low molecular weight, heating the mixture to the critical temperature of the low molecular substance under a pressure sufficiently high to maintain the density of the low molecular substance at or above the critical value, to form a solution, whereupon the pressure is decreased under adiabatic conditions and in stages, whereby fractions are separated. Mineral oils, or high boiling fractions thereof, coal-tar oils, paraffin wax, or polymerized hydrocarbons may be treated.  Low molecular weight substances specified are methane, ethane, propane, butane, ethylene, acetylene, ethyl chloride, dichlor-difluor methane, methylene fluoride, carbon dioxide, ammonia, dimethyl ether, or dimethylamine. It is stated that these substances at the critical temperature expand with decrease of pressure without the formation of a gaseous phase. A heat-insulated mixing vessel 1 is connected to a tank 4 containing a lubricating-oil fraction, and to a tank 10 containing liquid or gaseous propane maintained under pressure by a pump 9.  These liquids are admitted to the mixing tank 1 and the temperature raised to 147 DEG  C. under a pressure of 180 kg. per sq. cm.  After standing, any undissolved substances (asphalts and resins) are removed, and the pressure is reduced to 110 kg. by passing some of the mixture to an insulated tank 14.  This mixture is returned to the tank 1 when the resulting fraction is drawn off.  A heavy fraction separates and is conducted to a separator 19 where, by reduction of pressure, propane is separated and returned to the tank 10, and the oil passes to a tank 22.  By further reductions of pressure to 96 kg. and 85,5 kg. additional fractions and a residue are obtained and treated in separators 24, 28, 29 connected to tanks 25, 30, 31.  In another form of apparatus (not shown) the mixture is conducted through a series of separating vessels maintained at successively lower pressures and connected through throttle valves.  The pressure may also be controlled by adding an inert liquid such as water or mercury, the volume of which may be regulated hydraulically.
Patent GB-760737-A (GB)
Title: Improvements in or relating to catalytic hydrogenation
Inventor: WOOD WILLIAM STANLEY
IPC: C01B15/023
Filed: 1954-03-23
Abstract: In the production of alkylated or arylated anthraquinhydrones or anthraquinols, e.g. 2-ethyl anthraquinol, by the catalytic hydrogenation of the corresponding anthraquinone in a solvent medium, the catalyst comprises palladium deposited on a silica-alumina carrier, said catalyst being prepared by impregnating the carrier with a palladium compound by adsorption from an aqueous solution of a palladium salt, preferably palladium nitrate or chloride, separating the carrier from the solution and treating with an aqueous alkaline solution, e.g. of sodium or potassium hydroxide, and reducing the palladium to the metallic state, e.g. with hydrogen.  The carrier may be repeatedly alternately treated with palladium salt and alkaline solution. The carrier may contain 80-95 per cent of silica and 5-20 per cent of alumina.  The solvent medium may be a mixture of benzene and methyl cyclohexanyl acetate or the latter and an aromatic solvent containing 20 per cent paraffinic hydrocarbons and 80 per cent aromatic hydrocarbons consisting of 62 per cent of 1 : 3 : 5-trimethyl benzene and 38 per cent of 1 : 2 : 4-trimethyl benzene. Specifications 465,070, 508,081, 686,574, [all in Group III], and 718,307 are referred to.ALSO:In the production of hydrogen peroxide by the successive hydrogenation and reoxidation of an alkylated or arylated anthraquinone in a solvent medium, the hydrogenation is carried out in the presence of a catalyst, comprising palladium deposited on a silica - alumina carrier, which is prepared by impregnating the carrier with a palladium compound by adsorption from an aqueous solution of a palladium salt, preferably palladium nitrate or chloride separating the carrier from the solution and treating with an aqueous alkaline solution e.g. sodium or potassium hydroxide, and reducing the palladium to the metallic state e.g. with hydrogen. The carrier may be repeatedly alternately treated with palladium salt and alkaline solution. The carrier may contain 80 - 95 per cent of silica and 5 - 20 per cent of alumina.  The solvent medium may be a mixture of benbene and methyl cyclohexanyl acetate or the latter and an aromatic solvent containing 20 per cent paraffinic hydrocarbons and 80 per cent aromatic hydrocarbons consisting of 62 per cent of 1:3:5 trimethyl benzene and 38 per cent of 1:2:4 trimethylbenzene. The anthraquinone may be 2 - ethyl anthraquinone.  Specifications 465,070, 508,081, 686,574 and 718,307 are referred to.
Patent GB-1533131-A (GB)
Title: Damper arrangement
IPC: F16K1/54
Filed: 1976-03-03
Abstract: 1533131 Valves AMERICAN AIR FILTER CO Inc 3 March 1976 [4 March 1975] 08507/76 Heading F2V A main closure plate 6 for an orifice 8 in a plate 10 has an opening 12 closed by an apertured piston 20, the arrangement being such that the piston 20 is lifted to vent fluid before the main closure lifts to thereby prevent fluid surges. The piston 20 is actuated by a double acting fluid cylinder 4 operated by a switch 5 (or by a motor via gearing) and moves between a collar 22 of the closure 6 and an apertured housing 14 bolted to the closure 6. A spring 24 holds the main closure closed until the closure is lifted by the piston contacting a flange 18 of the housing 11.
Patent GB-1298639-A (GB)
Title: Toy building brick
Inventor: FISCHER ARTUR
IPC: A63H33/10
Filed: 1970-02-23
Abstract: 1298639 Toy building bricks A FISCHER 23 Feb 1970 [7 March 1969] 8548/70 Heading A6S A toy building brick includes a tenon 2 which consists of a neck with a hemispherical head 7 so that in use the head bears against the inner surface of a re-entrant groove 3 of another brick only in a region adjacent to the free end face of the head. The free end face may be concave, and the neck may be of polygonal or round cross-section.
Patent GB-531069-A (GB)
Title: Improvements in and relating to dividing dough
IPC: A21C5/00
Filed: 1939-03-17
Abstract: 531,069. Dividing and moulding dough. HARBER, L. S., and BAKER PERKINS, Ltd. March 17, 1939, No. 8584. [Class 87 (ii)] In dividing dough pieces by passing them between a conveying surfaced and an elongated blade, each piece is presented as a ball or short cylinder and is operated upon centrally by the blade to cause its division and shaping into two balls or spheres, the divided pieces being treated solely by contact with the conveying surface and blade. The divided pieces may be laterally separated and further subdivided, and means may be provided to control the " necks formed at the point of division so that they are presented symmetrically for further treatment. As shown, pieces of dough delivered from a shoot 13 are directed by guides 22 beneath a blade member 14, disposed above a conveyer 10, and formed with a narrow edge or cutter 17. The severed pieces of dough are directed to a further pair of similar blades by converging members 24 formed with lateral edges 26 to direct the "tail" for the further subdivision. The blade may be formed of bent sheet metal, as shown, or it may be solid. A modification is described in which the blade is disposed around a rotary drum. Specfication 400,619, [Group VI], and 514,659 are referred to. Reference has been directed by the Comptroller to Specification 514,659.
Patent GB-513849-A (GB)
Title: An exhaust gas driven turbo-blower
IPC: F01D25/12
Filed: 1938-03-22
Abstract: 513,849. Centrifugal pumps. MASCHINENFABRIK AUGSBURG-NURNBERG AKT.-GES. March 22, 1938, No. 8770. Convention date. March 23, 1937. [Class 110 (i)] In an exhaust gas driven turbo-blower. spaced bearings 4, 5 are used to separate the revolving hollow shaft 6 carrying the turbine wheel 7 and the stationary shaft 3 secured in the blower housing 1. The ball races of the bearing 5 are rigidly secured to the shafts 3 and 6 so as to locate the rotor whilst the outer race of the bearing 4 permits linear movement of the shaft 6 due to heat expansion. The bearing 5 is so arranged that no bending stresses are applied to the shaft 6 by the blower wheel 20. The shaft 3 is kept cool by means of passages 8, 9, 10, 11 through which cooling fluid passes and by means of plates 12, 13 which prevent radiant heat from the wheel 7 reaching it. If desired, the outer race of the bearing 4 may also be mounted in a bush of non-conducting material. The shaft 6 is prevented from overheating by water injected on to it by the pipe 14. Baffle rings 18 and air lock chambers 19 prevent the water creeping along the shaft. The bearings 4, 5 are lubricated and cooled by oil laden compressed air passed through the passages 21, 22.
Patent GB-825338-A (GB)
Title: Method of recording sound and device for carrying out this method
IPC: G11B3/36
Filed: 1958-03-19
Abstract: 825,338. Recording sound. TELDEC TELEFUNKEN-DECCA SCHALLPLATTEN G.m.b.H. March 19, 1958 [March 26, 1957], No. 8783/58. Class 40 (2). An arrangement for grooved sound recording by a heated stylus in which the average depth of cut of the stylus is increased with increases of the amplitude of the signal, is characterized in that means are provided to regulate the heating of the stylus in dependence on the depth of cut such that temperature variations of the stylus resulting from the different depths of penetration are compensated. The embodiment is described with reference to an apparatus for recording two signals in a separate groove, such as for stereophonic recording. In this case the one signal is conveyed by hill-and-dale recording and the other by lateral recording. The signals are taken from twin tracks pre-recorded on a magnetic tape 11. The signals from the particular track to be recorded by the lateral method is picked up by a head 12 and fed via an amplifier 14 to a recording head 4 cutting a groove on a record disc 3. Advance signals from the same track are picked up by a head 16, amplified by amplifier 18, rectified by a device 21 to produce a voltage which by means of a motor 24 varies the pitch of the traverse of the recording head 4 in accordance with the strength of the signal. Similarly, signals from the other track on tape 11 are also fed to recording head 4 via head 13 and amplifier 15. Advance signals from the same track are picked up by head 17, are amplified by amplifier 19 and also control the pitch of the traverse of head 4 via device 21 and motor 24. At the same time a branched-off lead through a device 23 applies a correction voltage to an electromagnet 28 which causes the depth of cut by the head 4 to be varied in accordance with the strength of the signal. A feeler 33 is provided which rests in contact with the record surface in advance of the head 4 and forms part of a transducer 32 which generates a voltage in accordance with surface variations and applies a depth setting correction via device 23 and electromagnet 28. An alternating current source 30 provides a stylus heating current which is varied by a choke 29 in accordance with the strength of the signals handled by device 23 and compensates for the greater heat dissipation which occurs during a deeper cut. Specification 770,465 is referred to.
Patent GB-745513-A (GB)
Title: Luminous gas discharge tube, particularly for advertising purposes
IPC: H01J61/04
Filed: 1952-04-07
Abstract: 745,513. Discharge lamps; luminescent materials. LOEWE OPTA AKT.-GES. April 7,1952 [April 9, 1951], No. 8795/52. Class 39 (1). Discharge lamp comprises one or more opaque metal plates 1 bearing fluorescent material on both sides forming or outlining signs, separate discharge columns being generated in front of both sides of each plate from separate electrodes 3, 4 and 5, 6. The plates are held in position by devices 7, 8 which may be fixed to the pinches 13, 14. The surface of the plates can be made reflecting by the galvanic application of a layer of nickel or by buffing. The metallic plates 1 can be used as auxiliary electrodes.
Patent GB-885912-A (GB)
Title: Fluid-pressure operated reciprocating gear device
IPC: F15B15/02
Filed: 1959-03-13
Abstract: 885,912. Gear pumps. BENDIX CORPORATION. March 13, 1959 [March 21, 1958], No. 8834/59. Class 110 (2). A motor for reciprocating a rack and comprising one or more gears rotatably mounted in a casing 10 is provided with means for maintaining a fluid-pressure difference across the meshing area of the rack and gear. The rack may mesh with a gear-wheel on each side so that four pumping chambers of substantially constant volume are formed in the casing. Ports opening into the chambers and connected in pairs, e.g. to an electronically operated servo-valve, alternately admit air under pressure to the chambers to rotate the gears and so reciprocate the rack. Hydraulic fluid may also be used to operate the rack, the device preferably being immersed in the fluid because of leakage around the rack. In Fig. 2, to prevent back-lash, two pairs of gears are used to drive the rack 50. Fluid ports 52, 54 have a common connection to a source at one pressure and ports 56, 58 are connected with fluid at a second pressure, while ports 60, 62, 64, 66 are connected to an exhaust. If fluid entering ports 56, 58 is at higher pressure than fluid entering ports 52, 54 the rack moves as shown by the arrow and vice versa. The functions of the ports may be reversed.
Patent GB-1137862-A (GB)
Title: Improved trigger action mechanism
Inventor: HUNTER WILFRED
IPC: G05G1/02
Filed: 1965-03-02
Abstract: 1,137,862. Valves. N. S. F. Ltd. 2 March, 1966 [2 March, 1965], No. 8860/65. Heading F2V. [Also in Division H1] A trigger action mechanism for operating pneumatic valves or electric switches (see Division H1) controlling hand-held power tools comprises a trigger member 1 pivoted at 3 to a portion 4 of a frame 5 and urged anticlockwise by engagement with the inner surface 15 of the base 2 of trigger member 1 of the end 16 of a resilient arm 17 protruding from portion 4 of the frame. A spring 19 may supplement the force of arm 17. The surface 15 is uninterrupted or has one or more projections 18 providing for a snap feel when the trigger member is actuated. A known optional locking device may be provided. The trigger member 1 is coupled by a pin 6 to the looped end 7 of a pull-rod 8 operating the valve.
Patent GB-1321208-A (GB)
Title: Ring laser gyroscope linearization system
IPC: G01C19/66
Filed: 1972-02-25
Abstract: 1321208 Lasers NORTH AMERICAN ROCKWELL CORP 25 Feb 1972 [19 April 1971] 8898/72 Heading G4H [Also in Division H1] In a ring laser which exhibits a non-linear  characteristic in regions just above its lock-in  rotation rate, the cosine of the ring output beat frequency is used to control one of the laser resonator mirrors and the sine of the output is used to derive a corrected signal which represents  the true rotation rate of the laser.  In Fig. 1 the apparent rotation rate given by a ring laser is plotted against its actual rotation rate Q. As is usual there is a minimum rotation rate Q L  below which the laser gives zero output, the present invention does not affect this. There is also a region 7 where there is an output from the laser, but its value is incorrect. The ring laser shown in Fig. 3 is controlled so that its output may be corrected to give the true rotation rate shown at 6 in Fig. 1. In Fig. 3 one output beam from the laser 12 passes to photodetector 1 via a beam splitter 18, while the other output beam is first reflected by a  vibratable mirror 11 before reaching the beam splitter. The combined beams are incident on the photodetector 1, and produce a sine function signal as shown in Fig. 4. This sine function is integrated to give a cosine signal at 2 in Fig. 3, and is passed to a counter 3. The counter is of the type which adds when the cosine signal is +<SP>ve</SP> and subtracts when it is -<SP>ve</SP>; the counter also receives a clock signal, so that its output is representative of the difference in the length of  time of + <SP>ve</SP> and - <SP>ve</SP> half cycles of the cosine signal. The output is passed via D to A converter and a transfer network 5 to a piezoelectric mirror mount 24, the motion of the mirror being such as to minimize the difference between the length of the half cycles of the cosine signal. A sine signal is shown in Fig. 4, and represents the output from the photodetector when the cosine half cycles have been made equal in time. The sine signal is fed to a counter 7 which works in the same manner as the previous counter 3 so as to give a signal representing T 1 -T 2  on Fig. 4. It is also fed to a counter 8 which produces a signal representing T 1 +T 2 ; the two signals are passed to a ratio multiplier 9 to give a signal (#)/(2).(T 1 -T 2 )/(T 1 +T 2 ). The cosecant of this is generated at 16 and passed to a linear accumulator 17. The output from the accumulator forms the corrected output of the ring laser shown at 6 in Fig. 1.
Patent GB-1104948-A (GB)
Title: A fastener and fastener arrangement for earth working attachment tools
IPC: E02F3/96
Filed: 1966-03-01
Abstract: 1,104,948. Earth moving equipment; scarifiers; clamps. C. A. ROBINSON and L. YOUNGER. 1, March, 1966 [8, March, 1965], No. 8980/66. Headings E1F, E1G and E2B. Scarifier equipment 17 is secured on a dozer blade 11 by releasable fastening means comprising a strut 24 that is drawn by transversely extending screw means positioned between the strut and the equipment to cause the strut to force apart mutually inclined abutments 27, 35 on the blade and the equipment to ensure of the looking together of the blade and the equipment by the drawing together of engaging parts thereof.